Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chemistry
| Question | Answer |
|---|---|
| what is the formula for calculating the number of electrons in a shell? | 2xn^2 n= number of the shell |
| whats the difference between polar and non polar covalent bonds? | nonpolar covalent bonds share electrons and polar shares unequally |
| What is the easiest way to remember about polarisability? | the larger the electron cloud = larger polarity = stronger dispersion force |
| What does oxidation do | Loss of electrons, gain of oxygen |
| what does reduction do | gain of electrons, loss of oxygen |
| What does OILRIG stand for? | Oxidation is loss of electrons. Reduction is gain of electrons.s |
| What does redox stand for? | oxidation-reduction reaction |
| what is the post suffix for an anion | -ide |
| what is the ion charge for halogens? | -1 |
| If a molecule has 3 bonds and zero lone pairs, what is its geometry? | trig planar |
| In a hydrogen bond, which end is electropositive and which is electronegative? | hydrogen is electropositive; the other is always negative |
| What net charge does any ionic compound have? | zero; both cations and anions must cancel out |
| in an O-H bond, which end is negative and which is positive? | O is partially negative charge; H is partially positive charge. |
| define electronegative | an atom with a tendency to attract/ want electrons |
| what's the difference between covalent and ionic bonds? | covalent shares electrons between atoms, and ionic transfers electrons to one atom |
| how do you know the number of protons | atomic number |
| formula for neutrons | mass - atomic number |
| formula for electrons (neutral) | number of protons |
| formula for electrons ( ion) | protons +/- charge |
| Formula for mass number | protons + neutrons = mass number |
| What bond does 2 metals create? | metallic bond |
| Define cathode | electrode where reduction occurs |
| What is a type 1 binary compound? | has metal present that forms only 1 cation |
| What is a type 2 binary compound? | A compound created from elements which have more than one ion. |
| Which element is used as the base for amu? | carbon 12 |
| What is the most electronegative element and its value | fluorine 4.0 |
| What is the least electronegative element and its value | cesium 0.7 |
| define alkanes | Hydrocarbons that contain only single bonds of only carbon and hydrogen, saturated |
| Define alkenes | hydrocarbons that contain carbon-carbon double bonds, unsaturated |
| Define alkynes | unsaturated hydrocarbons that contain a triple bond; few occur in nature because they are very reactive |
| What is the percentage yield formula? | (Actual yield ÷ Theoretical yield) × 100. |
| What is a covalent bond? | A chemical bond formed when two or more atoms share electrons. |
| What charge does each part of an atom have? | Protons have a positive charge, while electrons have a negative charge, and neutrons are neutral |
| What is the ion charge for noble gases? | 0 or neutral; has a full octet |
| What is hydrogen bonding? | the intermolecular force in which a hydrogen atom that is bonded to a highly electronegative atom is attracted to an unshared pair of electrons of an electronegative atom in a nearby molecule |
| define positive charge of an atom | The element receives less of the electrons' time |
| what type of bond is a hydrogen bond? | intermolecular, dipole-dipole |
| define anode | positively charged electrode where oxidation occurs |
| if the atomic bond is between either 2 non-metals or a metalloid and a non-metal, what type of bond is it? | covalent bond |
| if an atom loses an electron, what is it and what is its charge? | a cation and positive charge |
| define ionic compound | a compound composed of cations and anions |
| what is the definition of Arrhenius acid | any species of acid that increases the concentration of H+ (hydrogen ion) in an aqueous solution |
| What bond does 1 metal and 1 nonmetal create? | an ionic bond |
| What happens with a redox reaction? | Electron transfer reactions, oxidation and reduction occur simultaneously |
| define polyatomic ions | A charged group (2 or more) of covalently bonded atoms |
| define binary compounds | compounds containing only two elements |
| When does reduction occur? | When positively charged ions gain electrons at the negative electrode |
| When does oxidation occur? | When negatively charged ions lose electrons at the positive electrode |
| What does VSEPR theory stand for? | Valence Shell Electron Pair Repulsion theory |
| What does VSEPR theory state about electron sets around an atom? | Repulsion between the sets of valence-level electrons causes them to be oriented as far apart as possible. |
| what type of bond happens between a metal and non-metal? | an ionic bond |
| define Arrhenius base | a substance that increases the concentration of hydroxide ions, OH-, in aqueous solution |
| what type of bond holds DNA together? | hydrogen bonds |
| define molecular compound | a molecule composed of 2 elements |
| define negative charge of an atom | electron spends more time around that element |
| is Na+Cl- a covalent or ionic bond | ionic bond |
| What ion charge do alkali metals and alkaline earth metals have respectively | metals +1 earth metals +2 |
| If an atom gains an electron, what is it and what is its charge | An anion and its charge is negative |
| What bond do 2 nonmetals make? | covalent bond |
| if a compound has 2 oxygen, how many oxygen are there in 3 molecules | 6 oxygen molecules |
| whats the easiest way to remember how many valence electrons an atom has | The column the atom resides in tells you how many valence electrons are available |
| what is the difference between inter and intra molecular forces? | intra is the forces that exist between bonded atoms of a compound, and inter is that either attracts or repels atoms outside of the compound |
| Describe what happens to electrons in pure covalent bonds, covalent bonds, and ionic bonds | In pure covalent bonds, the electrons are shared evenly; in covalent bonds, the more electronegative atom will attract the electron more, and ionic completely takes the electron from the atom |
| If a molecule has 3 bonds and 1 lone pair, what's its geometry | trig pyramid |
| Regarding quantum numbers, what does n represent | the principal quantum number that states the distance of an electron from the nucleus |
| what does the quantum number m^s mean? | it's the spin |
| what is the difference in electronegativity of an ionic bond | 2 or more |
| how do you easily identify metallic bonds? | Low difference in electronegativity, and both elements are reasonably low electronegativities |
| What does the quantum number l mean? | shape of the orbital |
| What is the difference in electronegativity in a polar covalent bond? | 0.5 to 2 |
| If a molecule has 4 bonds and zero lone pairs, what is its geometry? | tetrahedral |
| In what order do shells fill? | 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 4f |
| What does the quantum number ml mean? | the magnetism |
| If a molecule has 2 bonds and 2 lone pairs, what is its geometry | bent |
| What is the difference in electronegativity for a nonpolar covalent bond? | less than 0.5 |
| What is the difference between binary and polyatomic ions | binary has at least 1 metal;l polyatomic is 2 non-metals |
| what does the quantum number l mean? | shape of orbital |
| regarding solubility and intermolecular forces,s what happens if you increase temperature? | increased temperature is increased solubility and decreased intermolecular forces |
| list from lowest to highest force of attraction of molecules and ions | London dispersion, dipole-dipole interaction, hydrogen bonding, single bonds, double covalent bonds, triple covalent bonds, and ionic bonds |
| What does quantum number "ml" mean? | Specifies a particular orbital within a subshell = -l - +l (2l + 1 possible values) tells us how many s,p,d orbitals are found in each subshell. |
| If a molecule has 2 bonds and 0 lone pairs, what is its geometry | linear |
| what is the shape of the orbital with s | Spherical |
| What is the shape of the orbital with p | 2-lobed |
| what is the shape of the orbital with d | 5 different shapes |
| what is the shape of the orbital with f | 7 different shapes |
| What is the subshell's maximum capacity of electrons for s | 2 |
| What is thesubshell'ss maximum capacity of electrons for p set | 6 |
| What is the subshell's maximum capacity of electrons for d set | 10 |
| What is the subshell's maximum capacity of electrons for the f set? | 14 |
Created by:
user-2046450